My photo-stitching program is on the fritz, so bear with me...First, the overview: from bottom to top the arrows are the visitors center, the cascades/yak bridge (baishui falls, I think), and Spruce meadow.

Second, the R/C incident occurs at this turnoff which leads up the the Spruce meadow skilift; compare the rock on the left and the directional arrows on the post. R/C had been coming from the uphill road which leads to the Yak meadow lift (maybe those small trams run up to Spruce meadow, I don't know). Photo source.

That person has a very light jacket and the sports shoes. They seem to match Christiana in the other video where she jumps ouf of the electric tram. It would be nice to get some screen caps of Christina to match with the unknown yak rider.

That person has a very light jacket and the sports shoes. They seem to match Christiana in the other video where she jumps ouf of the electric tram. It would be nice to get some screen caps of Christiana to match with the unknown yak rider.

It looks like only one team member rides the yak, and we see Ron riding, so that's probably not Christina, but I could be wrong.

That person has a very light jacket and the sports shoes. They seem to match Christiana in the other video where she jumps ouf of the electric tram. It would be nice to get some screen caps of Christina to match with the unknown yak rider.

That person has a very light jacket and the sports shoes. They seem to match Christiana in the other video where she jumps ouf of the electric tram. It would be nice to get some screen caps of Christina to match with the unknown yak rider.

Looking at the pictures, I'm pretty sure that these (Jaime / Mallory / Zev at the base) all happened in a relatively short time frame, what with the yak-handler being present in all three and, I think, Mallory's head scarf in the final picture. This assumes that each team has a different yak handler.

Also, I thought I saw a shot of several teams sprinting up a flight of stairs to, I'm guessing, the river for the yak riding (or it could be to the Spruce Meadow for the RB). Either way, I'm thinking we might be getting a bunch point.